Rotary motor.



J. E; SMITH.

ROTARY MOTOR. ArPLIoATIoN FILED JUNE so, 1909.

1,011,509. 4 l A Pgtented Dec.12,1911.

coLuMmA PLANOGRAPH E0.. WASHINGTON. r14 c.

JOI-IN ELLSWORTH SMITH, OF KANSAS CITY, KANSAS.

ROTARY MOTOR.

Specification of Letters Patent.

Patented Dec. 12, 1911.

Application filed .Tune 3G, 1909. Serial No. 505,291.

To all whom it mayl concern.' f

Be it known that I, JOHN ELLswoRTH SMITH, a citizen ofthe United States,residing at No. 65 SouthValley street, in the city of Kansas City, inthecounty-ofl Wyandotte, in the State of Kansas, have invented a new RotaryMotor, of which the following is a specification.

The objects of my invention are to apply the power of an expansivemedium direct to the driving shaft without cumbersome connecting rods,and to utilize all the force of an expansive medium for power purposes.These objects are illustrated in the accompanying drawing.

Similar letters refer to similar parts in the dierent views.

Figure 1 is a longitudinal section of the cylindrical casing andcircular end plates. Fig. 2 is a transverse section through the middleof the mechanism. Fig. 3 is a representation of a circular end plate.Fig. 4 is a view of the inside surface of a cylinder head. In Fig. 5 issho-wn the inner of a propeller blade.

The arrangement of the inside parts of the motor longitudinally disposedis shown in Fig. 1. The heads A A, are duplicates and the recess, Creceives a plate, P as indicated.

X represents the exhaust port in the cylindrical casing.

In the vertical midsection of the motor shown in Fig. 2, E and Erepresent inlet ports and X the exhaust. The formation of the rotor isindicated in this figure.

G, Gr and G represent walls yor sections formed on the interior of therotor on its long axis,- inthe manner indicated. The rotor is furtherformed interiorly into double concave portions as shown by H.

The sides of H are concave and the outer margin is convex asillustrated. The arc of a concave part is adapted to the end sweep of apropeller blade. And the arc of the outer margin is concentric with theaxis 01" the rotor as represented. It will be noted that eachlongitudinal-.section or wall is diametrically oppositely disposed toadouble concave part. v

B, B and B represent the propeller blades and the manner in which theblades are adapted to the longitudinal sections or walls. The action ofthe blades is also illustrated. The blade B is in a balanced position,and B is opening outr under pressure,

as it might be received from E, while B is shown as closing bycontacting with the cylindrical casing. v

Referring to the balanced blade B it will .be notedkthat with all theblades thus balanced, vthe rotor would form a circular body wouldcommunicate with the trough at the i right of Gr, on the' presentingend; the opposite end would be closed. The olce of the openings R and Tis to control the action ofthe blade B in the Vposition shown in Fig.

2, by utilizing the force of an expansive medium.. The explanation isthe same for the openings indicated by T and T when the blades B and Bare in the position of B shown in 2. The blade B, Fig. 2, is

shown in a balanced position contacting with a segment on the innercontour of the cylindrical casing.

The end plate P Fig. 3 has the same circumference as the cross sectionof the rotor. The reference characters T, T and T represent the openingsin the plate for the opposite end of the rotor in Fig. 2, while R, Rand-R indicate the openings in a plate for the presenting end. Thisillustration also shows the relative position of the openings in eachplate, `and it will be noted that each plate has three openings and theopening R, will not have a corresponding opening in the plate on theopposite end, and the opening T will not have a corresponding opening inthe plate on the presenting end of Fig. 2. These openings are designedto bo-th receive and discharge an expansive medium. The referencecharacter S represents the opening for the supporting shaft.

The manner in which an end'plate, P is adapted to lthe circular recess Oin a head A, is shown in Fig. 1. The representation of a head, A, inFig. 4, also shows the rela- Y the heads, A A, in Fig. l. The openings Oand O, as named, will serve as a port and an exhaust for T, T and T,Fig. 3, When the motor rotates in the direction indicated; and O Will beproperly connected to a constant supply of an expansive medium and OWill be suitably fitted to receive the exhaust. The position of O and Owill of course be reversed as shown in Fig. 4, on the head for thepresenting end of the motor shown in Fig. 2. The action will be thesame, in rotating from left to right, R, Fig. 3, Will receive at O andexhaust at O, and R Will receive at O and exhaust at O, and so onaround. The shaft opening is represented by S', and the bearing of theheads A A on a supporting shaft is illustrated in the section shown inFig. l.

In the representation of a propeller blade, B, shown in Fig. 5, thearrangement for attaching the blades to the longitudinal sections orWalls by pintle pins, is illustrated. The arc of the indicated curve isconcentric with the outside contour of the rotor as is shown with theblade, B, Fig. 2. A blade thus adapted and held by a pintle pin Willrespond very readily to the force of an expansive medium in a motor ofthis design.

The action of the motor is readily explained. Suppose that E isconnected to the supply of an expansive medium. The blade B is in aWorking position; R, Fig. 3, has already exhausted through O on thepresenting head, and T, Fig. 3, comes to a register with O, Fig. 4, andthe rear part of the blade, B is raised and receives the force of theexpansive medium from E', and continues the rotary movement; and R Fig.3, is brought to a register with O, on the presenting head and theblade, B, is forced into a balanced position and then, R', comes to aregister with O, on the presenting head and exhausts and T, Fig. 3, iscarried to a register With O, Fig. 4, and the rear part of the blade B,is raised to receive the force from E. The movement of the motor isreversed by changing the supply of the expansive medium from E to E,Fig. 2, and this object will be facilitated by adapting sliding valvesproperly fitted for that purpose. If the supply of the expansive mediumWas admitted through E it would strike the extended portion of the bladeB, and cause it to change its position rather violently, Were it not forthe cushion of expansive medium, mixed with air from X, remaining in thetrough at the right of the longitudinal section or Wall, Gr. With thisblade in a Working position the balance of the movement should bereadily comprehended. The expansive medium from the port O, Fig. 4,through T, Fig. 2, forces the blade B, into a balanced position, thecontour of the cylindrical casing holding the blade in such a positionuntil released through the port O. While the expansive medium from theport O, for the presenting head, Fig. 2, acting through the port R, Fig.3, Would raise the rear part of B to receive the force from the port E.It should be understood that the expansive medium in the casing, actingon the blade B, assists in forcing the blade B, into the Workingposition just described.

I believe the parts of the mechanism described in the foregoing andillustrated in the drawing are new and original with me, and thereforeclaim l. Tn a rotary engine, a rotor, curved propeller blades pivotallyconnected to the said rotor, a cylindrical casing inclosing the rotor,inlet ports centrally located at the top of the said casing andperipherally disposed thereon, one on each side of the vertical planepassing through the axis of the said casing, the latter having also atthe bottom an exhaust port suitably disposed, and parallel heads closingthe ends of the casing, a supporting shaft adapted to rotate in the saidheads, the inner surface of each head having a circular recessconcentric with the supporting shaft, the said recesses being adapted toreceive the ends of the rotor, each head having near its periphery asuitably disposed inlet and exhaust port.

2. In a rotary engine, a rotor suitably adapted to a supporting shaft,the said rotor being formed into longitudinal sections, each sectionbeing symmetrically disposed and radially projected, a curved propellerblade pivotally connected to the outer margin of each of the aforesaidsections, the said rotor being further formed into double concave partssymmetrically disposed, the said longitudinal sections and doubleconcave parts forming a plurality of troughs in the periphery of therotor, circular plates attached to the extremities of the said rotor,the said plates being concentric With the supporting shaft of the rotor,each plate having a central shaft opening and an opening, suitablydisposed near the periphery in each plate, the said openings near theperiphery in each plate being adapted as inlet and exhaust ports, andeach of the said openings, near the periphery in the aforesaid plates,in rotating, communicates with the inlet and exhaust port in theadjacent cylinder head.

In a rotary engine, a rotor, the latter being formed into longitudinalsections, each section being symmetrically disposed and radiallyprojected, a curved propeller blade pivotally connected to the outermargin of each section of the aforesaid longitudinal sections, eachcurved propeller blade being adapted to be balanced on its supportingsection and to be released and to oscillate on the said section, each ofthe said blades when balanced forming a part of the circular contour ofthe rotor, the said rotor being furplurality of troughs on the rotor,the Said troughs being adapted to receive the inner ends of thepropeller blades When the said blades are actuated, the said rotor andcurved propeller blades pivotally connected to the said longitudinalsections being adapt- 10 ed to rotate in a cylindrical casing, thebalanced blades and the peripheral portions of the rotor contacting withthe inner contour of the said casing.

J NO. ELLSWORTH SMITH. Witnesses:

L. H. THOMAS, IRA C. WILLIAMS.

Gopies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

